2 - TCA spa

1LLR SERIES DUAL RELIEF VALVEDIRECT ACTING DIFFERENTIAL AREA1LLR350POPPET TYPEP1P13P2P2THROUGH PRESSURE PORTSAPPLICATIONTo protect directional control valves from shock orsurge pressures induced by changes in direction orsudden stops which create excessive load conditions.OPERATIONThe dual relief is of the cross line type, where exhaustoil from one line is transferred to the other, negatingthe need for a separate tank line. It also preventscavitation when used in conjunction with a closedcentre directional valve. For greatest protection thevalve should be mounted as close to the actuator ormotor as possible.FEATURESSoft start and stop with fast acting operation to givemaximum protection to expensive actuators. Reducesplumbing to a minimum and cartridge construction makesfor easy maintenance.SPECIFICATIONSFigures based on: Oil Temp = 40°C Viscosity = 40 cStRated FlowMax SettingCartridge Material380 litres/min (100 US GPM)350 bar (5000 psi)Working parts hardened and groundsteel. External steel surfaces zinc platedPRESSURE DROPBody MaterialMounting PositionStandard aluminium (up to 210 bar*)Add Suffix ‘377’ for steel optionUnrestrictedPRESSURE-BAR400350300250200150100500 50FLOW-US GPM0 25 50100 150 200FLOW LITRES/MIN75250 300 350Integrated Hydraulics Ltd1004006000500040003000200010000PRESSURE-PSIWeightSeal Kit NumberRecommendedFiltration LevelOperating TempLeakageNominal ViscosityRange5.50 kg (12.0 lbs)SK685 (Nitrile) SK685V (Viton)BS5540/4 Class 18/13(25 micron nominal)-20°C to +90°C1.2 millilitres/min max (20 dpm)5 to 500 cSt*For applications above 210 bar please consult our technical department or use the steel body option.Integrated Hydraulics IncCollins Road, Heathcote Ind. Est., Warwick, CV34 6TF, UK.7047 Spinach Drive, Mentor, Ohio 44060, USATel: +44 (0) 1926 881171 Fax: +44 (0) 1926 315729 Tel: (440) 974 3171 Fax: (440) 974 3170Website: www.integratedhydraulics.comWebsite: www.integratedhydraulics.com3-141.C